what is the best exchange
Well, if the three of that you says, then there is undoubtedly Binance. The largest exchange, the largest volumes. Undoubtedly the best exchange at the moment
Same answer, with just basing into their reputation and ranking when it regards to volume then theres no doubt binance would be the best choice. Come to think of that forkdelta is a DEX which I do see on different category. Bancor is still a considerable exchange and lots of space to improve even more. I had no issues on using it also when I tend to sell up my ZPT.